I have a
device on my desk here that's the size of a small paperback
book; it's a subnotebook computer. I can connect keyboards, mice,
scanners, printers, serial ports, parallel & scsi ports, cameras,
calculators, phones, GPIB interfaces, external sound, video capture,
hard drives, usb memory sticks, card readers and dozens of other things
Thanks, I
got bored before I managed to list so many, and this is still
only scratching the surface.
But y'all left out the humping dog, pole dancer, fan, book light, and
coffee warmer.
USB is faster, and slightly better cable standardization than RS232.